I don’t know when I saw an ad for these kinds of shows last, but I used to see commercials for them all the time. And I always shook my head because I knew those shows were pointless. If in their investigations they had found definitive proof of ghost/bigfoot/aliens/whatever, they would have announced that to the world immediately. They would not have waited the months it takes to edit a show before revealing something that big. So unless they have already come out with proof of whatever, you can bet that any episode will be them looking at blurry images and coming up with theories. That’s all.